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  2. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...

  3. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    one of the few non-contiguous area codes in North America; 707: California (Vallejo, Crescent City, Eureka, Redwoods National Park, Santa Rosa, Ukiah, and most of northwestern California) 1959: split of 415; 2023: to be overlaid by 369; 708: Illinois (western and southern portions of suburban Cook County and far eastern sections of Will County ...

  4. List of Florida area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Florida_area_codes

    In 1995, area code 954 was introduced for Broward County. In 1996, area code 239 was introduced for southwest Florida and area code 352 for the areas around Gainesville and Ocala. Many new area codes were introduced in the first two decades of the 21st century, as a result of city expansion and growth of telecommunication services. [2] As of ...

  5. Area codes 760 and 442 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_760_and_442

    Since 2009 all users in the region have been required to include the area code even when dialing local calls. At 46,666 square miles (120,860 km 2 ), it is the largest numbering plan area in California with approximately 29% of the state served by area codes 760 and 442.

  6. Area codes 805 and 820 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_805_and_820

    Area codes 805 and 820 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area (NPA) includes most or all of the counties of San Luis Obispo , Santa Barbara , Ventura , and the southernmost portions of Monterey County . 805 was split from area code 213 in 1957, and area code ...

  7. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/19-dangerous-scam-phone-numbers...

    The good news is that scams operate in many known area codes, so you can avoid being the next victim simply by honing in on the list of scammer phone numbers. Read Next: 6 Unusual Ways To Make ...

  8. Area codes 561 and 728 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_561_and_728

    Area codes 561 and 728 are telephone area codes in the North American Numbering Plan (NANP) for Palm Beach County in the U.S. state of Florida. 561 was created on May 13, 1996, in a split of area code 407.

  9. Area codes 510 and 341 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_510_and_341

    They cover parts of Contra Costa County and western Alameda County, including the city of Oakland, but excluding Dublin, Livermore, Pleasanton, and Sunol. Area code 510 was established on September 2, 1991, in a split from area code 415. [1] On March 14, 1998, the inland portion of the East Bay was split off as area code 925.